Hair brush



FIG. 1 is a perspective view of a hair brush showing my new design;

FIG. 2 is a side elevational view of the side not shown in FIG. 1;

FIG. 3 is an end elevational view from the handle end of the brush;

FIG. 4 is an end elevational view from the opposite end of the brush;

FIG. 5 is a bottom plan view; and

FIG. 6 is a side elevational view of a single row of bristles. 

The ornamental design for a hair brush, substantially as shown. 